Improvement of wear resistance in ferrite-pearlite railway wheel steel via ferrite strengthening and cementite spheroidization

It is important and necessary to improve the wear resistance of ER8 railway wheel steel without changing its hardness. In this paper, ferrite strengthening and cementite spheroidization were adopted to achieve the better wear performance in the improved wheel steel, i.e., HiSi steel. Firstly, alloying elements including Si, Mn and Ni were added to achieve ferrite strengthening. Besides, high-temperature tempering was applied to the HiSi steel to...